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Context: Walter Bright created the first native C++ compiler, Zortech C++. This pull request actually implements its own C compiler! For Walter, considering he'

Context: Walter Bright created the first native C++ compiler, Zortech C++. This pull request actually implements its own C compiler! For Walter, considering he's implemented C++98 alone, implementing C must be nothing :) He implemented the ANSI C compiler here in just 5 days. Semi-related project, using libclang to import C++ directly (with C++ templates and all the other features, regular D has C++ linking and exception support built-in): https://github.com/Syniurge/Calypso https://github.com/Syniurge/Calypso Some quotes from the forum https://forum.dlang.org/post/s7a37h$2bbv$1@digitalmars.com https://forum.dlang.org/post/s7a37h$2bbv$1@digitalmars.com : - Writing a C preprocessor is a nightmare. Fortunately, I already did that https://github.com/facebookarchive/warp https://github.com/facebookarchive/warp and we can use it if we choose. - The D code will be able to inline C code, and even CTFE it. - There are a lot of wacky C extensions out there. We only need to implement currently used ones (not the 16 bit stuff), and only the stuff that appears in C headers. - Without a C compiler, we're stuck with, wedded to, and beholden to libclang. I wouldn't be surprised that the eventual cost of adapting ourselves to libclang will exceed the cost of doing our own C compiler.

mhh__ 5y ago
>ANSI C compiler here in just 5 days This is good work but let's be realistic - it doesn't work yet on any real C code I've tried it with.
- crazypython 5y ago
  Hey, fellow Dlanger! Yeah, it doesn't support C headers yet. But an excellent prototype nonetheless.
  - greatgoat420 5y ago
    > Hey, fellow Dlanger! Lol, he is a paid hype man for the Dlang community, and you should ask him about Symmetry Investments and if they are hiring.
    - mhh__ 5y ago
      > and you should ask him about Symmetry Investments and if they are hiring. I'm starting in July.
      - greatgoat420 5y ago
        That's great man, congratulations! People did not take my comment as the joke it was intended as.
      - a9h74j 5y ago
        That was quick.
      - fithisux 5y ago
        Congratulations
mingodad 5y ago
But dlang has a long problem of change constantly without backward compatibility and a lot of projects just die because of it, for example the mentioned https://github.com/facebookarchive/warp https://github.com/facebookarchive/warp : ==== make dmd -c -O -inline -release -ofwarp.o cmdline.d constexpr.d context.d directive.d expanded.d file.d id.d lexer.d loc.d macros.d main.d number.d outdeps.d ranges.d skip.d sources.d stringlit.d textbuf.d charclass.d context.d(222): Error: Implicit string concatenation is error-prone and disallowed in D context.d(222): Use the explicit syntax instead (concatenating literals is @nogc): "# 1 \"%2$s//\"\x0a" ~ "# 1 \"<command-line>\"\x0a" context.d(223): Error: Implicit string concatenation is error-prone and disallowed in D context.d(223): Use the explicit syntax instead (concatenating literals is @nogc): "# 1 \"<command-line>\"\x0a" ~ "# 1 \"%1$s\"\x0a" macros.d(329): Error: Built-in hex string literals are obsolete, use std.conv.hexString!"FD 61 FD" instead. macros.d(333): Error: Built-in hex string literals are obsolete, use std.conv.hexString!"FD" instead. macros.d(338): Error: Built-in hex string literals are obsolete, use std.conv.hexString!"FD 61 62 FD FD" instead. ranges.d(71): Error: Implicit string concatenation is error-prone and disallowed in D ranges.d(71): Use the explicit syntax instead (concatenating literals is @nogc): "Buffer overflowed. Possibly caused by forgetting to " ~ "complete a git merge in your code." Makefile:44: recipe for target 'warp.o' failed make: ** [warp.o] Error 1 ====
- crazypython 5y ago
  Those are 8 errors, all from 1 language change, which can be fixed by inserting 8 characters.
  - mingodad 5y ago
    After following the compiler suggestions (several times more): ==== make dmd -c -O -inline -release -ofwarp.o cmdline.d constexpr.d context.d directive.d expanded.d file.d id.d lexer.d loc.d macros.d main.d number.d outdeps.d ranges.d skip.d sources.d stringlit.d textbuf.d charclass.d util.d(20): Error: function `loc.Loc.write(File* f)` is not callable using argument types `(File function() nothrow @nogc @property ref @system)` util.d(20): cannot pass argument `& makeGlobal` of type `File function() nothrow @nogc @property ref @system` to parameter `File* f` directive.d(470): Error: template instance `util.err_warning!(string, string)` error instantiating context.d(264): instantiated from here: `parseDirective!(Lexer!(Context!(LockingTextWriter)))` main.d(39): instantiated from here: `Context!(LockingTextWriter)` Makefile:44: recipe for target 'warp.o' failed make: * [warp.o] Error 1 ====

mhh__ 5y ago

>ANSI C compiler here in just 5 days This is good work but let's be realistic - it doesn't work yet on any real C code I've tried it with.

crazypython 5y ago
Hey, fellow Dlanger! Yeah, it doesn't support C headers yet. But an excellent prototype nonetheless.
- greatgoat420 5y ago
  > Hey, fellow Dlanger! Lol, he is a paid hype man for the Dlang community, and you should ask him about Symmetry Investments and if they are hiring.
  - mhh__ 5y ago
    > and you should ask him about Symmetry Investments and if they are hiring. I'm starting in July.
    - greatgoat420 5y ago
      That's great man, congratulations! People did not take my comment as the joke it was intended as.
    - a9h74j 5y ago
      That was quick.
    - fithisux 5y ago
      Congratulations

mingodad 5y ago

But dlang has a long problem of change constantly without backward compatibility and a lot of projects just die because of it, for example the mentioned https://github.com/facebookarchive/warp https://github.com/facebookarchive/warp : ==== make dmd -c -O -inline -release -ofwarp.o cmdline.d constexpr.d context.d directive.d expanded.d file.d id.d lexer.d loc.d macros.d main.d number.d outdeps.d ranges.d skip.d sources.d stringlit.d textbuf.d charclass.d context.d(222): Error: Implicit string concatenation is error-prone and disallowed in D context.d(222): Use the explicit syntax instead (concatenating literals is @nogc): "# 1 \"%2$s//\"\x0a" ~ "# 1 \"<command-line>\"\x0a" context.d(223): Error: Implicit string concatenation is error-prone and disallowed in D context.d(223): Use the explicit syntax instead (concatenating literals is @nogc): "# 1 \"<command-line>\"\x0a" ~ "# 1 \"%1$s\"\x0a" macros.d(329): Error: Built-in hex string literals are obsolete, use std.conv.hexString!"FD 61 FD" instead. macros.d(333): Error: Built-in hex string literals are obsolete, use std.conv.hexString!"FD" instead. macros.d(338): Error: Built-in hex string literals are obsolete, use std.conv.hexString!"FD 61 62 FD FD" instead. ranges.d(71): Error: Implicit string concatenation is error-prone and disallowed in D ranges.d(71): Use the explicit syntax instead (concatenating literals is @nogc): "Buffer overflowed. Possibly caused by forgetting to " ~ "complete a git merge in your code." Makefile:44: recipe for target 'warp.o' failed make: ** [warp.o] Error 1 ====

crazypython 5y ago
Those are 8 errors, all from 1 language change, which can be fixed by inserting 8 characters.
- mingodad 5y ago
  After following the compiler suggestions (several times more): ==== make dmd -c -O -inline -release -ofwarp.o cmdline.d constexpr.d context.d directive.d expanded.d file.d id.d lexer.d loc.d macros.d main.d number.d outdeps.d ranges.d skip.d sources.d stringlit.d textbuf.d charclass.d util.d(20): Error: function `loc.Loc.write(File* f)` is not callable using argument types `(File function() nothrow @nogc @property ref @system)` util.d(20): cannot pass argument `& makeGlobal` of type `File function() nothrow @nogc @property ref @system` to parameter `File* f` directive.d(470): Error: template instance `util.err_warning!(string, string)` error instantiating context.d(264): instantiated from here: `parseDirective!(Lexer!(Context!(LockingTextWriter)))` main.d(39): instantiated from here: `Context!(LockingTextWriter)` Makefile:44: recipe for target 'warp.o' failed make: * [warp.o] Error 1 ====